The culture of modern building also implies the use of avant-garde materials: the SEP modular alveolar panels in coextruded polycarbonate are a perfect emblem of this attitude. These panels, as well as being protected against UV radiation on the external side and guaranteed for 10 years against UV-induced deterioration, enable designers to realise their own works, from the most traditional to the most architecturally complex, in complete freedom, without any size limits.